Improvement in time-locks



C. 1:". ATWOOD.

K TIME LOCK. ,291. Patented July 12, 1870.

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UNITED STATES PATENT OEEIcEO CORYDON F. ATW-OOD, OF HANCOCK, VISCONSN,ASSIGNOR '10 JAMlt E'. WILEY AND VINCENT C. PRICE.

IMPROVEMENT IN TIME-LOCKS.

Speozffcat'on forming part of .Letters Patent No. 105,291, dated July12, 1870,

To all whom t may concern:

Beit known that I, CoRYDoN F. ATwooD, of Hancock, in the countyofWaushara and State of Wisconsin, have invented a new and ImprovedSafe-Lock; and l do hereby declare that the following is a full, clear,and exactv description thereof, which will enable others skilled in theart to make and use the same, reference being had to the accompanyingdrawing, forming part of this specification.

Figure 1 represents a front elevation of a safe provided with myimproved lock. Fig. 2 is a vertical longitudinal section of the same,the plane of section being indicated by line .r w, Fig. 1. Fig. 3 is avertical longitudinal section of the same, the plane of section beingindicated by the line y y, Fig. 4. Fig. 4 is a ver-v tical transversesection of the same taken on the plane of the line e z, Fig. 2. Fig. 5is a detail longitudinal section of the locking-bolt.

Similar letters of reference indicate corresponding parts. n

This invention has for its object to construct a safe-lock which will beabsolutely safe against false keys, and which, in fact, cannot be openedby any key, being locked by clockwork that is concealed within the safe.No key-hole or knob will, therefore, enable burglars to apply theirtools with a view of opening the lock.

This invention consists in an improved combination of parts wit-h asafe-lock under such an arrangement thatthe lock cannot be opened by anykey.

The invention also consists in theconstruction of the setting andlocking apparatus, and of other details, as hereinafter described.

A in the drawing represents a safe, vault, or other burglar-proofapparatus. B is the door of the same. On the inner face of the door areformed hooks or equivalent catches da, into which the bolts are to belocked. These catches are represented in Fig. 1, in which the door isshown open. -The bolts C G are pivoted tothe side of the safe, and are,it' desired, connected with each other by a rod, b, (shown by dottedlines in Fig. 1,) so that they will move simultaneously. The lock isconnected with the rod d by means of a lever,

D, which is pivoted to the side of a plate, E,

that constitutes part of the inner lining of the safe. 'lhe lever D is,by means of a jointed rod, c, connected with a lever, F, which is alsopivoted to the plate E, and which contains a springgcateh,d,that can beused to lock a pivoted hook, G, as shown in Figs. 3 and'.

When the lever F is locked to the hook G, it will serve to lock thelever D, which, in that position, holds the rod b down upon the hooks,locking vthe door. The lever D has a spring, e, which allows its outerpart, even it locked by the hook G, to swing up, thereby can only beunlocked by appara-tus concealed within the safe.

The apparatus is made in form of a clock,

which, when wound up, can be set to swing the hook G, and therebyrelease the lever F at any desired time.

A spring, H, is connected with the lever F, to draw the same down, andwith it one end of the lever D, thereby releasing both of lthe hooks aas soon as the hook G is swung clear' ofthe catch d.

The clock-work I, which is concealed within the safe, operates twohands, h and t', that move over the face of a dial, J, as in everyordinary clock. The dial is affixed to the inner face ot' the plate E,to be readily seen when the safe is opened.

Around the dial is placed a notched or toothed ring, L, which can beeasily turned. Around the spindle is loosely fitted a third haud,j,which is made of spring metal, and carries a pin, l, that can readily beplaced into one of the notches of the spring L. A projecting pin, m, onj, is in the way ofthe hourhand h. When the hour-hand strikes the pin mit will carry the hand j, and with it the ring L, around.

The upper end of the hook G is, by a link,

As the bolts are not connected with any outside apparatus,they

n, connected with a horizontal lever,` M, that extends inward through aslot ot' the plate E. The lever M is also locked into a notch of thering L.

' When the hand lzy strikes the pin m and commences to turn the ring L,the latter will carry the lever M along until the same swings the hookGr clear of the catch d. The safe is then opened. A spring, o, carriesthe lever M back to its original position, so that all parts Having thusdescribed my invention, I claim as new and desire to secure by LettersPatent- 1. The ring L, placed around the dial ot' a clock Within thesafe, and connected With a hand, j, which is moved by the hour-hand h,substantially as herein shown and described.

2. The combination of the safe-bolts with the levers D F, hook G, andlever M, all arranged to operate as set forth.

3. The ring L, turned by the hand of a clock, and connected with thecatch-hook G, to release the same, as specified.

The above specification ot' my invention signed by me this 17 th day ofDecember, 1869.

coRYDoN F. ATWooD.

Witnesses GEORGE' E. Moons7 MARY P. Moons.

